We have the common, one Gaslow and one Calor exchange bottle system. What is the best way to use this setup.
Carry on using the Calor until empty then swopping to the Gaslow, exchanging the Calor bottle as soon as convenient?
Swopping as soon as the Gasflow is refilled. This leaves me with an unknown quantity in the Calor?
Once the Gaslow is refilled, exchange the part used Calor accepting the loss?
Carry on using the Calor until empty then swopping to the Gaslow, exchanging the Calor bottle as soon as convenient?
Swopping as soon as the Gasflow is refilled. This leaves me with an unknown quantity in the Calor?
Once the Gaslow is refilled, exchange the part used Calor accepting the loss?